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Which sensor can detect nearby objects?

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in IOT by (70.0k points)
Which sensor can detect nearby objects?

(a) Proximity sensor

(b) Humidity sensor

(c) Touch sensor

(d) Pressure sensor

I had been asked this question by my school teacher while I was bunking the class.

The question is from Proximity Sensor in chapter Sensors of IOT

1 Answer

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Best answer
Correct option is (a) Proximity sensor

Best explanation: A proximity sensor is a sensor able to detect the presence of nearby objects without any physical contact. A proximity sensor often emits an electromagnetic field or a beam of electromagnetic radiation, and looks for a change in the return signal.

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